﻿/************************************************************************

   Extended Silverlight Toolkit

   Copyright (C) 2010-2012 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

   Please purchase a commercial version of this toolkit if you are using
   it in a commercial product. The commercial versions support the project,
   and also include more features for each control, priority support,
   source code, updates, removed watermark, and a proprietary license.

   Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/

using System.Collections.Generic;

namespace Xceed.Silverlight.DataGrid
{
  internal class UpdateTransitionFactory : LayoutFactoryBase
  {
    public LayoutFactoryBase NewLayoutFactory { get; private set; }

    public UpdateTransitionFactory( LayoutFactoryBase newLayoutFactory )
    {
      this.NewLayoutFactory = newLayoutFactory;
    }

    public override ILayout CreateLayout( ILayoutContainer container, IEnumerable<ILayoutElement> elements )
    {
      ILayout newLayout = this.NewLayoutFactory.CreateLayout( container, elements );

      return !object.ReferenceEquals( container.Layout, EmptyLayout.Instance )
        ? new UpdateTransitionLayout( container, container.Layout, newLayout )
        : newLayout;
    }
  }
}
